MACHEREY-NAGEL VISOCOLOR ECO Test kit/ Nitrite VISOCOLOR ECO presents a product group of colorimetric and titrimetric test kits which avoids hazardous substances wherever possible. With VISOCOLOR ECO even water constituents with low limiting values can be determined with sufficient accuracy. All VISOCOLOR ECO test kits are packed in an environment-friendly box and contain easy to understand instructions in 6 languages.
Colorimetric Tests Principle: Colorimetry with color comparison card
- visual and photometric evaluation
- (with PF-12 / photino)
- environment-friendly
- economically priced
- convenient handling
- higher accuracy and sensitivity
- with pictographic instructions
- reagent bottles with clear dosing instructions c
- ompensation of turbidities and colors
- refill packs available
Titration Tests Principle: Titration with drop counting
- visual evaluation
- environment-friendly, without toxic reagents
- economically priced
- convenient handling
- higher accuracy and sensitivity
- sharper color change due to separated
- dropping reagents
- reagent bottles with clear dosing instructions
MACHEREY-NAGEL VISOCOLOR ECO Test kit Nitrite Colorimetric determination of nitrite
In acidic solution sulphanilic acid or sulphanilamide are diazotised with nitrite. The diazonium salt is then coupled with an aromatic amine, forming an intensely coloured azo dye. Organic colloids, chlorine, humic acids and coloured heavy metal ions interfere.
In surface waters nitrite ions are generally present in low concentrations. Their presence in ground water is less common. In waste waters nitrite frequently occurs, even in fairly high concentrations.
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Trade mark rapid tests:
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VISOCOLOR
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Rapid tests:
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nitrite, nitratetest refill
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| Shipping weight: |
1,00 Kg |
| Product weight: |
0,20 Kg |
Details
